All woods a\re fibrous with the fibres (or grain) growing along the length of the trunk or branch. These fibres consisit of cells (tracheids) of, mainly, cellulose supported by lignin resin.
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Strenght in Wood
Wood has its greatest strength in the direction of the fibres.
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Defects in Wood
It is a natural material so is not as consisitent in structure as polymers.
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Knots
Knots can weaken the structure of the material as well as produce an irregular pattern.
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Conversion of Wood
Term used when sawing a tree trunk into useable pieces of timber. 2 basic forms; sawn and quarter sawn.
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Other cards in this set
Card 2
Front
Oak, Ash, Walnut, Yew, Beech, Teak
Back
Hardwood
Card 3
Front
All woods a\re fibrous with the fibres (or grain) growing along the length of the trunk or branch. These fibres consisit of cells (tracheids) of, mainly, cellulose supported by lignin resin.
Back
Card 4
Front
Wood has its greatest strength in the direction of the fibres.
Back
Card 5
Front
It is a natural material so is not as consisitent in structure as polymers.
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